As per the HW manual, XTOSCB bit setting is as follows
If using an external clock signal, set the XTOSCB bit as 1 to
disable the crystal oscillator.
If using an external crystal, the XTOSCB bit needs to be set at 0
to enable the crystal oscillator.
Document clock and clock-names properties.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
v5->v6:
* Added Rb tag from Geert.
v4->v5:
* Replaced oneOf->enum for clock-names as it is simpler.
* Added Rb tag from Conor.
v4:
* New patch
---
.../devicetree/bindings/rtc/isil,isl1208.yaml | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
index 565965147ce6..11f7378d4997 100644
--- a/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
+++ b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
@@ -25,6 +25,17 @@ properties:
reg:
maxItems: 1
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ description: |
+ Use xin, if connected to an external crystal.
+ Use clkin, if connected to an external clock signal.
+ enum:
+ - xin
+ - clkin
+
interrupts:
minItems: 1
maxItems: 2
--
2.25.1
